Risultati della ricerca nelle immagini - "Regions" |

APOLLO_12_AS_12-50-7438-1.jpgAS 12-50-7438 - Lunar Terminator (True Colors; credits: Dr Marco Faccin)96 visitenessun commentoMareKromium
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Aeolian_Features-Yardangs-20080111a.jpgAshes and Sulphur all over Apollinaris Patera (Extremely Enhanced Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 157 visiteSe, per questo frame, la NASA sottolinea, per altro giustamente, l'aspetto legato ai "segni del vento" lasciati nei pressi dell'antico vulcano noto come Apollinaris Patera, noi preferiamo enfatizzare il "senso" di questa colorizzazione (forse un pò psichedelica, ma non fantasiosa).
Ricordate le istantanee Apollo 17 che ritraevano, nei pressi del Cratere noto come "Shorty", delle sabbie e detriti arancio/rossastri e che tanto stupirono la Comunità Scientifica? Ebbene, quel "bizzarro" colore della superficie lunare era solo l'evidenza di una remota attività vulcanica o di un, forse più recente, outgassing. Qualunque fosse l'origine del fenomeno, tuttavia, la sua causa venne chiarita attraverso l'analisi dei campioni riportati a Terra.
Per ricordare:"...On Earth, orange or rust-colored rocks and soil around volcanic vents are often the result of literal rusting of iron by volcanic water vapor. If this was the cause of the orange soil at Shorty then, small amounts of volcanic gasses might still be present (on the Moon)...".
Ed anche su Marte, ovviamente. Le "parole magiche", poi (e soprattutto per Marte), sono "ruggine causata da vapore acqueo". Ora la domanda è ovvia: perchè continuare a soffermarsi sulla tracce di "Aeolian Activities" quando c'è qualcosa - a nostro parere - di molto più intrigante da indagare?
Qualcosa che se, sulla Luna, poteva avere senso solo se riferita ad un remoto passato, su Marte potrebbe significare moltissimo in proiezione attuale e futura? Pensateci bene: il fenomeno del "rusting" (e quindi dei colori rosso/arancio accesi, sia sulla Luna, sia sulla Terra e sia su Marte o altrove nel Sistema Solare) si risolve nell'ossidazione di elementi ferrosi (iron-based and iron-rich elements) a causa della presenza di acqua (in qualche forma).
Perchè quindi ignorare il vapore acqueo (con la possibile "cappa di umidità" in perenne sospensione, come sostiene l'Amico Matteo Fagone) e parlare solo di "venti", di "yardangs", di "layers" e di tante altre cose certamente importanti e meravigliose, ma mai tanto importanti e meravigliose quanto l'eventuale - ed attuale - presenza di acqua sul Pianeta "Arrugginito"?
Ecco: alla fine, ben più di Cydonia e dei possibili "Artifacts Marziani", è questo il VERO "mistero"...MareKromium
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B-PIA09947.jpgContext Image of Planned Landing Site53 visiteCaption NASA:"This view covers an area about 27 Km (about 17 miles) wide within the planned landing area for NASA's Phoenix Mars Lander. It was taken by the Context Camera on NASA's Mars Reconnaissance Orbiter and catalogued as image P02_001893_2485_XI_68N126W_061221 from that instrument.
Note the crater near the top (north) of the image. The red box indicates the position of a higher-resolution image PIA09948 of ground texture in this area".MareKromium
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Clouds-Soth_Polar_Regions-20090417a-PCF-LXTT-1.jpgSouthern Storm (1 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)68 visiteCaption NASA:"Right now, most of the Southern Hemisphere of Mars is covered by Dust Storms, blocking our view of the Surface. Bright cloud tops dominate these two VIS images".MareKromium
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Clouds-Soth_Polar_Regions-20090417a-PCF-LXTT-2.jpgSouthern Storm (2 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)72 visiteCoord.: 68,7° South Lat. and 146,4° East Long.MareKromium
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Clouds-South_Polar_Regions-20090416a-PCF-LXTT-1.jpgSouthern Storm (1 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)57 visiteCaption NASA:"The southern hemisphere dust storm season is in full swing this year on Mars. This VIS image shows the top of the dust clouds and thin streamers of clouds".MareKromium
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Clouds-South_Polar_Regions-20090416a-PCF-LXTT-2.jpgSouthern Storm (2 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)79 visiteCoord.: 68,2° South Lat. and 190,6° East Long.MareKromium
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Clouds-South_Polar_regions-20090415a-PCF-LXTT.jpgSouthern Cloud-Front (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)73 visiteCaption NASA:"This VIS image of the South Polar Region of Mars shows the edge of a front of clouds. These clouds are near enough to the Surface to be affected by surface topography".
Coord.: 73,7° South Lat. and 133,0° East LongMareKromium
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Craters-Unnamed_South_Polaer_Buried_Crater-PIA04147.jpgFilled and Buried Unnamed Crater in the South Polar Region (Original NASA/MGS/MSSS b/ Frame)53 visiteOriginal caption:"This MGS-MOC image shows a Circular Depression and a suite of eroding Mesas of CO2 - features occuring in the South Polar Residual Cap of Mars. The eroding CO2 creates landforms reminiscent of 'Swiss Cheese'. The Circular Feature might indicate the location of a filled, Buried Impact Crater".
Location near: 86,8° South Lat. and 111,0° West Long.
Image width: width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Spring
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Dunes-North_Polar_Dunes-PIA13344.jpgNorth Polar Dunefields (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)75 visiteCaption NASA:"As Northern Summer approaches on Mars, the Dunes near the North Polar Regions defrost and become darker".
Source: NASA/2001 Mars Odyssey Orbiter
Orbit Number: 37996
Latitude: 78,969° North
Longitude: 158,204° East
Instrument: VIS
Captured: 2010-07-08MareKromium
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Dunes-PIA14880-PCF-LXTT-1.jpgDegrading North Polar Barchan-type Dune (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)186 visiteThis Dune, located in the North Polar Region of Mars, showed significant changes between two images taken on June 25th, 2008 and May 21st, 2010 and revealed Landslides and Sand advancing at the Dune-Front (upper left); changes in the position of the rest of the Dune Boundary relative to the fixed, underlying Terrain and changes in the position of the Ripples located on the Dune Surface.
MareKromium
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ESP_011345_0950_RED_abrowse.jpgSmall Fan-like Surface Features on the South Polar Perennial Cap (Natural Colors; credits: Lunar Explorer Italia)53 visiteMars Local Time: 17:54 (late afternoon)
Coord. (centered): 84,8° South Lat. and 339,3° East Long.
Spacecraft altitude: 247,7 Km (such as about 154,8 miles)
Original image scale range: 99,1 cm/pixel (with 1 x 1 binning) so objects ~ 2,97 mt across are resolved
Map projected scale: 1 mt/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,9°
Phase Angle: 88,7°
Solar Incidence Angle: 89° (meaning that the Sun is about 1° above the Local Horizon)
Solar Longitude: 181,0° (Northern Autumn)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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